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What’s a backup mask for? Lol
in 26 years of diving, I’ve never lost a mask once.
I suppose tethering yourself to the line with a 2 meter reef hook would work but that becomes an entanglement risk for you and other dives ascending/descending on the line.
Suits me fine and is a good standard for mixed teams, but that diving system is designed for the right-handed people only.Here is one "standard"
Standardized equipment placement for diver’s pockets
The lack of standardized placement for equipment stowed in a diver’s pockets continues
to create confusion among dive teams and may be considered a hazard during
emergencies in which a dive buddy needs to assist an incapacitated or troubled diver.
Therefore, GUE has agreed to standardize the placement of equipment in a diver’s
pockets. While it is understood that arguments might be made on all sides it has been
agreed that the diver’s left pocket will hold “utility” equipment while the right pocket
should hold “safety” equipment. This convention allows divers to become familiar with
placement which will best serve them in all diving scenarios. For example, a diver using
a scooter can access “utility” items while scootering. Utility items include but are not
limited to a primary SMB, double end clips, stage carry loops, jump spools etc.; safety
items include a reserve SMB, spare mask, safety spool, wet notes etc.